1.7+5,23=12,23 (2)
29,8-8=21,8 (3)
16,6/0,2=83 (4)
7,5 * 0,4=3 (2)
Найдите 15% от 800.
15%=0,15
800*0,15=120 (2)
6. Среди чисел 0,0072 0,013 0,009 0,0017 укажите наименьшее.
4) 0,0017.
7. Выполни действия 81517- 21417+ 1917=62017
8. Найдите корень уравнения: 25х + 49 = 149
25х=149-49
25х=100
х=100/25=4 2) 4
9.
(40,4+2)*4+(40,4-2)*3=153,6+115,2=268,8км
ответ: 268,8км
10.
70:2=35градусов
ответ:35 градусов
11.
9;4
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